Type-mold.



J. E. HANRAHAN.

. TYPE MOLD.

. APPLICATION FILED JULY 23, 1909. RENEWED MAY 30, 1911. 1,015,020.Patented Jan. 16, 1912.

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Witness UNITED STATES PATENT OFFTC JOHN E. HANRAHAN, 0F BALTIMORE,MARYLAND, ASSIGNOR TO THE CHESAPEAKE ADDRESSING COMPANY, .A CORPORATIONOF MARYLAND.

TYPE MOLD.

Patented Jan. 16, 1912.

Application filed July 23, 1909, Serial No. 509,085. Renewed May 20,1911. Serial No. 628,564.

To all whom it may concern:

Be it known that I, JOHN E. HANRAHAN, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Type-Molds; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to type founding and has special reference to animproved form of mold for use in the casting of type. It is wellunderstood among those skilled in the art that this mold in the usualconstruction is composed of separate sides and back pieces and that thematrix forms one end of such a mold. It is also well known that owing tothe fact that the mold is thus composed of separate pieces greatdiliiculty is experienced in obtaining successive type having uniformdimensions throughout as well as that the type cast in such a mold areextremely liable to have fins projecting from the edges and corners,this being caused by the molten type metal working into the cracks inthe mold between the various parts.

The object of the present invention is to construct a type mold of suchcharacter that repeated castings of type may be had therefrom, each ofthe type so cast being of uniform dimensions throughout. This object isaccomplished by a novel formation of the matrix and mold and thisformation preferably takes the shape of constructing the matrix, the topand sides of the mold as an integral structure.

WVith the above and other objects in view as will be hereinafterapparent, the invention consists in general of an integral structureforming the sides and back of a type mold together with certain othernovel features of construction and combinations of parts hereinafterfully described, illustrated in the accompanying drawings, andspecifically set forth in the claims.

In the accompanying drawings, like characters of reference indicate likeparts in the several views, and Figure 1 is a vertical section through amold constructed in accordance with this invention, the view showing themelting pot and lead pump as ordinarily used. Fig. 2 is a detail viewshowing the manner of removing the type from the mold. Fig. 3 is adetail perspective of the top,

sides and matrix of a mold. Fig. 4 is a detail perspective of a moldbase.

The letter A in general indicates the melting pot with its accompanyinglead pump and is to be taken as typical of any such device, since thismelting pot forms no part of my invention. This melting pot A isprovided with the ordinary nozzle 10 which leads to an opening 11 formedin the foot block 12 of a type mold and which is se-' curely attached bypins 13 to a casting table 14. To the upper edge of this foot block 12is secured a member 15 which projects inwardly over the casting table,said member being attached to the block 12 by means of a suitable pin16. Carried on the casting table 14: is a slide which comprises acentral portion 17 and two side portions 18. These side portions are ofless height than the central portion and the three portions are detachably connected by means of suitable pins, the heads of which are shownat 19. The central portion 17 is of such width as to fit closely betweenthe side walls 20 of thelintegral mold portion comprising these sidewalls 20 and the cap 21. Between these side walls is the matrix 22 andthis matrix is so arranged as to contact closely with the top face ofthe slide member 17 when the mold is in position for casting. The slidemember 17 is further provided with projections 23 for the purpose offorming the nicks in the type as well as to hold said type immovablewhile being freed from the'matrix in the manner hereinafter described.

In using this mold the members 17 and 18 forming the bottom of the moldare positioned on the casting table and the structure disclosed in Fig.3 is placed thereon so that the sides 20 embrace the members 17 and restupon the members 18, with the fixed matrix opposite the opening 11. Thematrix with the sides and cap of the mold fixed thereto are pushedforward under the member 15 and are there held by any suitable means notdeemed necessary here to be disclosed as it may be any of the meanscommon in type casting mechanisms used for the purpose of holding themold in position while casting. The mold having thus been positioned thelead pump is actuated and the requisite quantity of lead forced in themold through the opening 11 so that the mold is entirely filled with thelead. When the type hasbeen cast the upper portion of the mold with thematrix fixed therein is drawn away from the foot of the mold and byreason of the projections 23 in the base of the mold the type which ishere indicated at 24 in Fig. 2 will remain behind and may readily besheared from the stem which forms in the opening 11 by any of the usualmeans.

It is found that with type cast in a mold of this description there isno variation in the width, length or thickness, but that all sides andcap of the mold integral and second by having the matrix fixedly mountedbetween said sides and fixedly connected to the cap.

Having thus described the invention, what is claimed as new, is

l. The combination with a mold base including an upstanding longitudinalrib; of.

a member held on said base and slidable therealong, including a pair ofmold sides, a mold cap and a matrizgsaid sides, cap and matrix beingfixed together.

2. In a mold for type, the combination with a base having projectionsand arranged to form a surface of a type and the nicks therein; of amember held on said base and slidable therealong, said member includinga pair of mold sides, a mold cap' and a matrix, said sides, cap andmatrix being integral.

3. The combination with a mold base including an upstanding longitudinalrib, of a member held on said base and slidable therealong, said memberincluding a pair of mold sides, a mold cap and a matrix.

t. In a mold for type the combination with a base having projections andarranged to form a surface of a type and the nicks therein, of a memberheld on said base and slidable therealong, said member including a pairof mold sides, a mold cap and a matrix.

5. The combination with a mold base in cluding an upstandinglongitudinal rib, of

a member on said base and having a mold cavity one side of which isformed by the said rib, one of the said elements being movablelongitudinally with respect to the other.

6. The combination of a member having a mold cavity and a second memberhaving a rib forming one side of said mold cavity and with respect towhich rib the first named member is slidable.

7. The combination with a member having a mold cavity, of a memberslidably related to the first named member and having a rib forming oneside of the said mold cavity.

8. The combination with a mold base including an upstanding longitudinalrib, of a member on said base and having a mold cavity one side of whichis formed by the said rib, said rib having a projection to form a nickin the type.

9. The combination with a mold base including an upstanding longitudinalrib, of a member on said base and slidable therealong, said memberincluding a pair of mold sides, a cap and a matrix, the said rib of thesaid mold 'base entering the space between said pair of mold sides andforming one side of the mold cavity.

10.111 type moldlng mechanism a castlng table, a slide thereon, a footblock also on said table, a member secured to the foot block and spacedabove the slide, and a mold member slidable on the slide and between thelatter and the member which is secured to the foot block, said moldmember having a mold cavity therein, one side of which is formed by thesaid slide.

11. In type molding mechanism a casting table, a slide thereon, a footblock also on said table, a member secured to the foot block and spacedabove the slide, and a mold member slidable on the slide and between thelatter and the member which is secured to the foot block, said moldmember having a mold cavity therein, one side of which is formed by thesaid slide, the said slide having a rib extending intothe said side ofthe mold cavity,

In testimony whereof, I afiix my signature, in presence of twowitnesses.

JOHN E. I-IANRAHAN.

Vitnesses JACK Q. H. SMITH, Jr., J. LERoY HOPKINS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

